受氯离子侵蚀钢筋混凝土结构的耐久性检测诊断

Structural Durability Detection and Diagnosis of R.C. Structure under Chloride Environment

基于电化学理论,考虑不同腐蚀阶段,研究探讨了氯离子的侵蚀作用机理、结构混凝土中氯离子含量界限值、氯离子的扩散等有关问题,简要分析了不同腐蚀阶段结构钢筋锈蚀检测的几种常用电化学方法,介绍了混凝土抗氯离子渗透性的相关检测技术,并基于不同腐蚀控制策略,结合工程实际,提出了针对氯离子腐蚀的结构防护对策.

According to the theory of electrochemical mechanism and based on the different phase corrosion model, the mechanism of chloride ions invasion, boundary value of chloride ions content in R. C. Structures and chloride ions diffusion etc. are studied, and several electrochemical methods used to monitor the corrosion of the reinforcement are studied. The detection technology of the resistance for chloride ions＇ permeability in concrete is introduced and the protection measures for prevention of chloride ions＇ invasion are also put forward.